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1FEATURES

2? Operating Current of 20 μA to 20 mA

? 0.6Ω Dynamic Impedance (A grade)

? Low Temperature Coefficient

? Low Voltage Reference—2.5V

DESCRIPTION

The LM185-2.5 are micropower 2-terminal band-gap

voltage regulator diodes. Operating over a 20 μA to

20 mA current range, they feature exceptionally low

dynamic impedance and good temperature stability.

On-chip trimming is used to provide tight voltage

tolerance. Since the LM185-2.5 band-gap reference

uses only transistors and resistors, low noise and

good long term stability result.

Careful design of the LM185-2.5 has made the device

exceptionally tolerant of capacitive loading, making it

easy to use in almost any reference application. The

wide dynamic operating range allows its use with

widely varying supplies with excellent regulation.

The extremely low power drain of the LM185-2.5

makes it useful for micropower circuitry. This voltage

reference can be used to make portable meters,

regulators or general purpose analog circuitry with

battery life approaching shelf life. Further, the wide

operating current allows it to replace older references

with a tighter tolerance part. For applications requiring

1.2V see LM185-1.2.